• 【Integrated Multifunctionality】This keyboard case offers a 3-in-1 solution combining a protective case, BT keyboard, and stand. It eliminates the need to carry separate accessories, solving the pain points of multiple gadget storage and potential loss. This design is particularly suitable for commuting, business trips, and other mobile scenarios.
• 【Enhanced Device Protection】The case is made of durable PU leather or anti-scratch fabric with a soft silicone or flocked lining. It provides comprehensive protection against daily bumps, scratches, and dust. The closed design also protects the screen from scratches, balancing aesthetics and practicality while reducing device maintenance costs.
• 【Portable and Lightweight】Compared to traditional external keyboards, this integrated design significantly reduces overall volume and weight (most are controlled between 300-500g). It easily fits into backpacks, tablet bags, or even handbags, meeting the portability needs of professionals, students, and freelancers for various mobile work scenarios.
• 【Efficient Typing Experience】The keyboard features a key travel of 1.0-1.5mm, similar to laptop keyboards, avoiding touchscreen input errors and inefficiency. It significantly improves efficiency in document writing, email replies, and code writing. Some models feature backlit keys with adjustable brightness, suitable for nighttime use or in low-light environments like trains or planes. 
• 【Flexible Stand Adjustment】The built-in adjustable stand supports multiple angles from 30° to 120°, providing comfortable viewing angles for typing and transforming into a media viewing mode for videos or online classes. This versatility caters to both productivity and entertainment needs.
• 【Long Battery Life】The built-in lithium battery typically supports several weeks of standby time and dozens of hours of continuous use. With fast charging capabilities and auto sleep/wake functions, it effectively conserves power and eliminates battery anxiety during outdoor work sessions.  

Specifications:

• Model: L13B-A  
• BT Standard: BT 5.0 (inferred)
• Effective Operating Distance: 10 meters
• Modulation Method: GFSK
• Operating Voltage: 3.7-4.0V
• Operating Current: ﹤8mA
• Standby Current: ﹤0.3mA
• Sleep Current: ﹤50μA
• Charging Current: ﹥200mA
• Standby Time: ﹥100 days
• Charging Time: 2-3 hours
• Lithium Battery Capacity: 150mAh
• Continuous Working Time: Not less than 30 hours
• Lithium Battery Lifespan: 3 years
• Key Force: 80 ± 10g
• Key Lifespan: 5 million clicks
• Working Temperature: -10°C to +55°C
• Keyboard Features: Includes touchpad
• Charging Port: Type-C interface